Re: Transaction logging. -- DOMINO400

Daos copies the attach back into the db

Walter scanlan

507-286-6088

Sent from my BlackBerry Handheld.

----- Original Message -----
From: rob
Sent: 06/01/2009 03:34 PM AST
To: Lotus Domino on the iSeries / AS400 <domino400@xxxxxxxxxxxx>
Subject: Re: Transaction logging.

If I make a local replica of a DAOS enabled database are the attachments
back in the replica database, or in a bunch of little files on the local
replica? Probably back in the database. Otherwise that would definitely
not be a server issue then, eh?

So instead of the client accessing the document and finding a funny link
that it has to interpret as a link to the DAOS file the server passes back
the actual attachment?

Can we find some sort of official document that gives us good news? Would
that forum qualify as "official"?

Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com

From:
Chris Whisonant <chris.whisonant@xxxxxxxxx>
To:
"Lotus Domino on the iSeries / AS400" <domino400@xxxxxxxxxxxx>
Date:
06/01/2009 03:30 PM
Subject:
Re: Transaction logging.
Sent by:
domino400-bounces+rob=dekko.com@xxxxxxxxxxxx

They are wrong about that. In a quick search of the Domino 8.5 forum at
devWorks, I found 2 IBMers who also said that DAOS is just server-only and
that clients don't need to be upgraded.

---------------------------------------------------

Thanks,
Chris
Personal Blog: http://cwhisonant.blogspot.com
Work Blog: http://www.bleedyellow.com/blogs/lotusnut

On Mon, Jun 1, 2009 at 3:09 PM, <rob@xxxxxxxxx> wrote:

Now that's not what they told us. "Domino 6 and 7 clients will not
recognize DAOS."
Presentation: Upgrading to Notes and Domino 8.5
Section: Principle #1 - Planning
Slide: Understand Co-existence Issues if going from Domino 6.5 to

Domino

8.x
Last bullet on slide: "Domino 6 and 7 clients will not recognize DAOS."

I could pick some poor dumb SOB and convert their archive to use DAOS

and

see if they can still get to their attachments.
Back up plan would be they'd better quickly take the mandatory on line
training so they can get permission to upgrade their client to 8.5.

Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com

From:
Chris Whisonant <chris.whisonant@xxxxxxxxx>
To:
"Lotus Domino on the iSeries / AS400" <domino400@xxxxxxxxxxxx>
Date:
06/01/2009 02:48 PM
Subject:
Re: Transaction logging.
Sent by:
domino400-bounces+rob=dekko.com@xxxxxxxxxxxx

Clients don't have to be upgraded. It's transparent to them.

---------------------------------------------------

Thanks,
Chris
Personal Blog: http://cwhisonant.blogspot.com
Work Blog: http://www.bleedyellow.com/blogs/lotusnut

On Mon, Jun 1, 2009 at 2:44 PM, <rob@xxxxxxxxx> wrote:

Really looking forward to DAOS. Have to get all those clients

upgraded

first.

Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com

From:
Chris Whisonant <chris.whisonant@xxxxxxxxx>
To:
"Lotus Domino on the iSeries / AS400" <domino400@xxxxxxxxxxxx>
Date:
06/01/2009 02:41 PM
Subject:
Re: Transaction logging.
Sent by:
domino400-bounces+rob=dekko.com@xxxxxxxxxxxx

You don't need to do anything different as long as your disk drives

aren't

already experiencing usage/utilization problems. IIRC, Walter said

you'll

see about a 3% hit by starting transaction logging, but you'll

probably

recoup that once you setup DAOS and see the reduced I/O overhead that

will likely bring.

---------------------------------------------------

Thanks,
Chris
Personal Blog: http://cwhisonant.blogspot.com
Work Blog: http://www.bleedyellow.com/blogs/lotusnut

On Mon, Jun 1, 2009 at 2:17 PM, <rob@xxxxxxxxx> wrote:

Went to an IBM & Partner intro to 8.5 last week. One of the new

options

we may look at requires transaction logging be fired up. Most of

the

time

when I hear about transaction logging it makes me think of something
primarily run in a lab or on a test machine. Because, they mention
keeping your data on one drive and your transaction logs on another

drive.

Well, my machine has ninety disk drives. All Raid 5 protected.

Does

it

really make sense to put the transaction log on dedicated disk? On

the

i

that would involve Auxiliary Storage Pools or ASPs. In theory I

could

have two ASPs: Main data in one and transaction logging in the

other.

I

can't imagine it would take more than a few 70gb disks to do

transaction

logging.
Raid sets smaller than 4 drives are known to have serious

performance

implications. Technically you can do a 3 drive raid set, but unless

the

customer is just migrating from a S/36 they will notice the

performance

hit versus a 4 drive (or more) set.

Is this separate disk stuff recommended on a "real" os?
Do I need a full RAID set in an ASP?

Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com

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